Book Chapters
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6158
The National Elevation Dataset The National Elevation Dataset
No abstract available.
Authors
D.B. Gesch
Tower counts Tower counts
Counting towers provide an accurate, low-cost, low-maintenance, low-technology, and easily mobilized escapement estimation program compared to other methods (e.g., weirs, hydroacoustics, mark-recapture, and aerial surveys) (Thompson 1962; Siebel 1967; Cousens et al. 1982; Symons and Waldichuk 1984; Anderson 2000; Alaska Department of Fish and Game 2003). Counting tower data has been...
Authors
Carol Ann Woody
Volcanic eruptions, hazards, and mitigation Volcanic eruptions, hazards, and mitigation
No abstract available.
Authors
J. Feldman, R.I. Tilling
Volcano-electromagnetic effects Volcano-electromagnetic effects
Volcano-electromagnetic effects—electromagnetic (EM) signals generated by volcanic activity—derive from a variety of physical processes. These include piezomagnetic effects, electrokinetic effects, fluid vaporization, thermal demagnetization/remagnetization, resistivity changes, thermochemical effects, magnetohydrodynamic effects, and blast-excited traveling ionospheric disturbances...
Authors
Malcolm J. S. Johnston
Waterbirds of the Chesapeake Bay region: An introduction Waterbirds of the Chesapeake Bay region: An introduction
No abstract available.
Authors
R.M. Erwin, G.M. Haramis, Matthew C. Perry, B.D. Watts
Weirs: Counting and sampling adult salmonids in streams and rivers Weirs: Counting and sampling adult salmonids in streams and rivers
Weirs—which function as porous barriers built across stream—have long been used to capture migrating fish in flowing waters. For example, the Netsilik peoples of northern Canada used V-shaped weirs constructed of river rocks gathered onsite to capture migrating Arctic char Salvelinus alpinus (Balikci 1970). Similarly, fences constructed of stakes and a latticework of willow branches or...
Authors
Christian E. Zimmerman, Laura M. Zabkar
Workshop: Western hemisphere network of bird banding programs Workshop: Western hemisphere network of bird banding programs
Purpose: To promote collaboration among banding programs in the Americas. Introduction: Bird banding and marking provide indispensable tools for ornithological research, management, and conservation of migratory birds on migratory routes, breeding and non-breeding grounds. Many countries and organizations in Latin America and the Caribbean are in the process of developing or have...
Authors
A. Celis-Murillo
Fen management and research perspectives: An overview Fen management and research perspectives: An overview
No abstract available.
Authors
Beth A. Middleton, A. Grootjans, K. Jensen, Harry Olde Venterink, Katalin Margoczi
Submarine slides north of Puerto Rico and their tsunami potential Submarine slides north of Puerto Rico and their tsunami potential
New multibeam bathymetry of the entire Puerto Rico trench reveals numerous retrograde slope failures at various scales at the edge of the carbonate platform north of Puerto Rico and the Virgin Islands. The slumped material comprises carbonate blocks, which fail, at least in initial stages, as a coherent rock mass. This, combined with the fact that the edge of the carbonate platform is...
Authors
Uri S. ten Brink, Eric L. Geist, Patrick J. Lynett, Brian D. Andrews
Data collection network to support ecosystem forecasting for the Barataria Basin - Mississippi River domain Data collection network to support ecosystem forecasting for the Barataria Basin - Mississippi River domain
Ecosystem forecasting is limited by a number of uncertainties including inadequate initialization information, unknown boundary conditions, inaccurate model physics and atmospheric forcing functions, and inadequate algorithm development of geomorphic and ecological responses to hydrodynamic and geophysical processes. Monitoring can help reduce these uncertainties by providing numerical...
Authors
Gregory D. Steyer, Alaina Owens, Brady Couvillion
Wetland researchers on the hurricane front lines Wetland researchers on the hurricane front lines
Close proximity to the Gulf Coast and its expansive wetland ecosystem made Lafayette, Louisiana, a perfect site for the U.S. Geological Survey National Wetlands Research Center. This location also put the center at the edge of the hurricane impact zones. In the days following the storms, researchers became rescuers and scientists saved lives.
Authors
Gregory J. Smith